DDC control systems usually use application-specific controllers. These controllers are designed to meet the needs of HVAC control. DDC controls are capable of performing all the common control ...

The vast majority of commercial buildings today include direct digital control (DDC) systems. These systems are also known by other names, such as facility management systems (FMS) and building ...

Many HVAC service and control technicians are familiar with troubleshooting direct digital control (DDC) input and output (I/O) 4mA to 20mA and 0VDC to 10VDC or 1V to 5V analog signals. But as new ...

Direct digital control is used to establish electronic control of the heating, ventilation, and air conditioning systems on campus. Direct digital control systems also allow the consistent use of time ...

Electric City will be installing a Delta DDC control system in conjunction with Electric City EnergySavers(TM) as part of an overall energy management program. Electric City also will manage the ...